Brake lights help urgently needed

hi everyoen and thanks for letting me join
i have just bought a ford focus and come across a fualt with the brake lights .. they keep blowing the fuse i have replaced the brake lights swith now if i dont put the switch on the fuse doesnt blow as soon as i connect the switch the fuse blows i even tried using a piece of wire but as soon as i connected it the fuse blew...

hi everyoen and thanks for letting me join i have just bought a ford focus and come across a fualt with the brake lights .. they keep blowing the fuse i have replaced the brake lights swith now if i dont put the switch on the fuse doesnt blow as soon as i connect the switch the fuse blows i even tried using a piece of wire but as soon as i connected it the fuse blew...

any ideas everyone please i would be very gratefull...

thank youDarren

Sounds like a problem i have had before, did you by any chance buy your bulbs from the most reputable car center ? Think the bulbs are twin element 380's ? take the bulbs out and see if the 2 elements are touching on the inside of the bulb, this creates a short and blows the fuse. Best idea is to change both bulbs and see if this works !